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AP EAMCET Engineering 2013 Solved Paper

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Question : 13

Total: 160

A tension of 20N is applied to a copper wire of cross sectional area 0.01cm2, Young's modulus of copper is 1.1×1011N∕m2 and Poisson's ratio is 0.32. The decrease in cross sectional area of the wire is

1.16×10−6cm2
1.16×10−5m2
1.16×10−4m2
1.16×10−3cm2

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